The court encountered a lot of resistance to the use of cement to build embankments and roads, the first of which came from the Ministry of Civil Affairs. The secretary of the Ministry of Civil Affairs is now held by Tang Jian.

The Ministry of Civil Affairs is also the former name of the Ministry of Households, so it was not called the Ministry of Households. At this time, Tang Jian, the secretary of the Ministry of Civil Affairs, was too different from Dai Guan, the former secretary of the Ministry of Civil Affairs.

When Dai Zhou was in office, he was diligent and thrifty, but because he was diligent in political affairs, he had no intention of taking care of and buying and selling family property, so that the house was small and simple. In the seventh year of Zhenguan, Dai Zhou died of illness, and His Majesty Li Er resigned from the dynasty for three days, posthumously presented him as the right servant of Shangshu and the Duke of Daoguo, and gave him the title of loyalty, and ordered Yu Shinan to write an inscription for him. Tang Taizong saw that his residence was simple, and he was afraid that there would be no place to worship, so he specially ordered the government to set up a temple for him. Since then, it has left a name for eternity.

At this time, Tang Jian was a lazy official, panicked about political affairs, and did not care about cement, so he pushed the matter off again and again under the pretext of lack of money. It is true that the Ministry of Civil Affairs is really short of money now, but there are also some reasons for Tang Jian.

Coupled with the push of conservatives, they expressed concern about the new thing of cement, so the cement matter dragged on.

And among the people, unconsciously, a book quietly entered the bookstore, and many readers saw this book, but they didn't pay much attention to it, until the first well-dressed scholar opened the first page out of curiosity, and saw a poem printed in the center of a blank paper.

After a hard encounter, there are few stars around.

The mountains and rivers are broken and the wind is fluttering, and the life experience is ups and downs.

The panicked beachhead said panic, and the zero ding sighed in the ocean.

All men are mortal? Keep Dan in mind.

Shizi couldn't help but read out softly, the impassioned patriotic enthusiasm of the whole poem, the high wind and bright festival that regarded death as home, and the outlook on life of sacrificing life for righteousness, shook Shizi, and he couldn't help but open the first page and began to read this magnificent page in the Southern Song Dynasty.

After flipping through the two pages, the scholar did not hesitate to take out the copper coin and buy the book, intending to take it back and read it slowly.

The economic concept of the Southern Song Dynasty opened the eyes of the scholars, which showed the economic cycle development model bit by bit in front of him, which was Chen Xu wrote the modern economic model into the book, and he did not understand the economic model of the Southern Song Dynasty.

But what Shizi didn't know was that he was deeply fascinated by this new economic development model. In the end, I saw that the Southern Song Dynasty used literature to control the military, suppressed the warriors, and degraded the warriors to thieves with the army, and finally the foreign Dajin invasion and the humiliating indemnity made the scholars feel a sense of righteous indignation in their hearts, not vomiting and unhappy, and scolding the Southern Song Dynasty.

When the Southern Song Dynasty lost half of the country, Yue Fei stood up and won many battles, so that the scholars saw hope, but the traitorous ministers were in charge, Yue Fei was killed, and the tragic plot and the spirit of seeing death as home were unobstructed, and finally ended with the word Man Jianghong.

Angry hair rushed to the crown, leaning on the railing, Xiaoxiao rain rest. Raise your eyes, look up to the sky and roar, and be fierce. Thirty fame, dust and earth, eight thousand miles of clouds and moons. Don't wait, the young man's head is white, empty and sad.

Jing Kang is ashamed, and it is still snowing. When the courtiers hate, when will they perish. Drive a long car and step through the lack of Helan Mountain. Zhuang is hungry for Hulu meat, laughing and thirsty for Xiongnu blood. To start from the beginning, clean up the old mountains and rivers, and face the sky.

The scholar was full of tears, thought lightly, and slapped the table and roared.

"What a traitor Qin Hui, a certain and you don't share the sky."

Under the scholar's Amway, many young scholars also came into contact with this book, and took the lead in promoting it in Cheng Chuliang, and the book was sold out directly the next day.

On the third day, Jingzhong's report to Guoyue Feichuan caused an uproar in Guozijian and Taixue, in which the economic development model, as well as the tax efficiency of commerce ten times that of Datang, became a topic of discussion for many people.

And Yue Fei's tragic story also made these scholars enthusiastic. insulted the incompetence of the Southern Song Dynasty court, and bluntly said that traitorous ministers such as Qin Hui had to be killed alive in the Tang Dynasty.

But the most concerned is the word poem.

At this time, the word is called long and short sentences, and at this time, many people discover that long and short sentences can also have such charm.

And because this book was written by Jiang Wei, many people discussed, Jiang Wei is the history of the immortal family, whether he can predict the future, and even many people boldly speculate whether this Southern Song Dynasty is a dynasty after the Tang Dynasty? Of course, no one said it.

It was not only these scholars who doubted this, His Majesty Li Er was also deeply shocked after reading the biography of Jingzhong Serving the Country Yue Fei.

Such a person who is dedicated to the country and the people, Yue Fei, and a person who sacrifices his life for righteousness, if I get Yue Fei, it is like a tiger with wings, so why worry about the injustice of Liaodong?

The economic system in it also opened His Majesty Li Er's eyes, and the detailed circulation model is that if the people are rich, the country will be rich, and the country will be rich, and the country will be used for business, and the business will hire the people, and the tax will increase. The detailed explanation in it had to make His Majesty Li Er sigh, the disciple of the Immortal Family, really deserves his name.

But His Majesty Li Er thinks that this set is flawed, that is, food, at least not for this time.

And His Majesty Li Er, the Song Dynasty's Yiwen Yuwu Li, also disagreed very much, but he was interested. What was the reason for the Song Dynasty's implementation of the Imperial Martial Arts with Literature? His Majesty Li Er couldn't help but fall into deep thought, thinking that this was a warning from the disciples of the Immortal Family to him.

His Majesty Li Er turned to the first page of the introduction of the Song Dynasty, and looked at the name of the founding emperor of the Song Dynasty with a torch in his eyes.

"Zhao Kuangyin ......"

……

I want to compare the waves caused by Yue Fei's book in the outside world, and the small courtyard of Xufu is much quieter.

At this time, Jiang Wei was making a fixer, and only one chemical material was needed, which was sodium thiosulfate. This thing is also called baking soda, the chemical formula is Na2S2O3, and the molecular weight is 158.108.

There are many synthesis methods of sodium thiosulfate, including sodium sulfite method, alkali sulfide method, etc.

Jiang Wei adopts the sodium sulfite method, which reacts with sulfur dioxide gas by soda ash solution, adds caustic soda to neutralize, adds sulfide alkali to remove impurities, filters, and then dissolves sulfur powder in hot sodium sulfite solution for reaction, filtering, removing impurities, then filtering, adding caustic soda for alkali treatment, and preparing sodium thiosulfate products after concentration, filtration, crystallization, centrifugal dehydration, and screening.

First of all, Jiang Wei needs to make ingredients, the first one is sulfur dioxide, which is simple. The second is sulfide alkali, which is made by calcination of pulverized coal and miscanthus nitrate, with the chemical formula a2SO4+2C→ Na2S + 2CO2.

"Cousin, I boiled some chicken soup and brought it to my cousin to taste."

As soon as Jiang Wei had finished the sodium thiosulfate product and the fixer was completed, he saw his cousin Xu Hui coming with a maid carrying a soup can.

This is the first time Xu Hui has brought food to herself, and she happens to be a little hungry, so she is welcome.

"Don't come close, this thing is poisonous, I'll change my clothes and come."

Xu Hui smiled slightly, she glanced at Jiang Wei's experimental equipment curiously, she didn't know what he was messing with, but she thought it must be something great.

Jiang Wei changed his clothes, took the spoon, and glanced at the chicken in the soup can, and ate it unceremoniously, the taste was not bad, and the chicken was also very bad, but the taste was slightly salty.

After just two bites, Jiang Wei noticed that Xu Hui was watching him eat, a little unaccustomed. Apparently Xu Hui didn't notice this.

"Cousin, how does it taste?"

"Hmm."

Jiang Wei nodded,

"It tastes good, it will be better next time with less salt."

Xu Hui nodded, this was made by her own hands, and when she heard her cousin's praise, she was very happy, but she didn't seem to be shocked on the outside.

"Since it's delicious, then my cousin will eat more."